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AT89LS52 数据表(PDF) 26 Page - ATMEL Corporation

部件名 AT89LS52
功能描述  8-bit Low-Voltage Microcontroller with 8K Bytes In-System Programmable Flash
PDF  39 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT89LS52 数据表(HTML) 26 Page - ATMEL Corporation

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26
2601C–MICRO–06/08
AT89LS52
Figure 21-1. Flash Programming and Verification Waveforms – Parallel Mode
21. Flash Programming and Verification Characteristics (Parallel Mode)
T
A = 20°C to 30°C, VCC = 4.5V to 5.5V
Symbol
Parameter
Min
Max
Units
V
PP
Programming Supply Voltage
11.5
12.5
V
IPP
Programming Supply Current
10
mA
I
CC
V
CC Supply Current
30
mA
1/tCLCL
Oscillator Frequency
3
16
MHz
tAVGL
Address Setup to PROG Low
48tCLCL
t
GHAX
Address Hold After PROG
48t
CLCL
tDVGL
Data Setup to PROG Low
48tCLCL
tGHDX
Data Hold After PROG
48tCLCL
t
EHSH
P2.7 (ENABLE) High to V
PP
48t
CLCL
tSHGL
VPP Setup to PROG Low
10
µs
tGHSL
VPP Hold After PROG
10
µs
t
GLGH
PROG Width
0.2
1
µs
tAVQV
Address to Data Valid
48tCLCL
tELQV
ENABLE Low to Data Valid
48tCLCL
t
EHQZ
Data Float After ENABLE
0
48t
CLCL
tGHBL
PROG High to BUSY Low
1.0
µs
t
WC
Byte Write Cycle Time
50
µs
t
GLGH
t
GHSL
t
AVGL
t
SHGL
t
DVGL
t
GHAX
t
AVQV
t
GHDX
t
EHSH
t
ELQV
t
WC
BUSY
READY
t
GHBL
t
EHQZ
P1.0 - P1.7
P2.0 - P2.4
ALE/PROG
PORT 0
LOGIC 1
LOGIC 0
EA/V
PP
V
PP
P2.7
(ENABLE)
P3.0
(RDY/BSY)
PROGRAMMING
ADDRESS
VERIFICATION
ADDRESS
DATA IN
DATA OUT



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